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| Naji, M. |
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Voit, Brigitte
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Publications (37/37 displayed)
- 2024Retraction of “Fe3O4 Nanoparticles Grown on Cellulose/GO Hydrogels as Advanced Catalytic Materials for the Heterogeneous Fenton-like Reaction”
- 2024Retraction of “Multifunctional Cellulose/rGO/Fe3O4 Composite Aerogels for Electromagnetic Interference Shielding”
- 2023Synthesis and characterization of poly(1,2,3-triazole)s with inherent high sulfur content for optical applications
- 2023Screen printable PANI/carbide-derived carbon supercapacitor electrode ink with chitosan bindercitations
- 2023Influence of Polyvinylpyrrolidone on Thermoelectric Properties of Melt-Mixed Polymer/Carbon Nanotube Compositescitations
- 2021Chemical Bonded PA66-PTFE-Oil Composites as Novel Tribologically Effective Materials: Part 2
- 2021Highly Tunable Piezoresistive Behavior of Carbon Nanotube-Containing Conductive Polymer Blend Composites Prepared from Two Polymers Exhibiting Crystallization-Induced Phase Separationcitations
- 2021Self-Replication of Deeply Buried Doped Silicon Structures, which Remotely Control the Etching Process: A New Method for Forming a Silicon Pattern from the Bottom Up
- 2020MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids
- 2020MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acidscitations
- 2020RETRACTED: Multifunctional Cellulose/rGO/Fe3O4 Composite Aerogels for Electromagnetic Interference Shieldingcitations
- 2020Tuning the Piezoresistive Behavior of Poly(Vinylidene Fluoride)/Carbon Nanotube Composites Using Poly(Methyl Methacrylate)citations
- 2020Aerogels Based on Reduced Graphene Oxide/Cellulose Composites: Preparation and Vapour Sensing Abilitiescitations
- 2020Thermal annealing to influence the vapor sensing behavior of co-continuous poly(lactic acid)/polystyrene/multiwalled carbon nanotube compositescitations
- 2020Tuning the Structure and Performance of Bulk and Porous Vapor Sensors Based on Co-continuous Carbon Nanotube-Filled Blends of Poly(vinylidene fluoride) and Polycarbonates by Varying Melt Viscositycitations
- 2020Synthesis and characterization of stiff, self-crosslinked thermoresponsive DMAA hydrogels
- 2019Melt-mixed PP/MWCNT composites: Influence of CNT incorporation strategy and matrix viscosity on filler dispersion and electrical resistivity
- 2019Organic vapor sensing behavior of polycarbonate/polystyrene/multi-walled carbon nanotube blend composites with different microstructurescitations
- 2019Amorphous Conjugated Polymers as Efficient Dual‐Mode MALDI Matrices for Low‐Molecular‐Weight Analytescitations
- 2019RETRACTED: Fe3O4 Nanoparticles Grown on Cellulose/GO Hydrogels as Advanced Catalytic Materials for the Heterogeneous Fenton-like Reactioncitations
- 2019Melt-Mixed PP/MWCNT Composites: Influence of CNT Incorporation Strategy and Matrix Viscosity on Filler Dispersion and Electrical Resistivitycitations
- 2018Electrical and vapor sensing behaviors of polycarbonate composites containing hybrid carbon fillerscitations
- 2018Smart cellulose/graphene composites fabricated by in-situ chemical reduction of graphene oxide for multiple sensing applicationscitations
- 2018A Chemically Doped Naphthalenediimide-Bithiazole Polymer for n-Type Organic Thermoelectricscitations
- 2018Tuning the conductance of a molecular wire by the interplay of donor and acceptor unitscitations
- 2018Alkyl Branching Position in Diketopyrrolopyrrole Polymerscitations
- 2017Polypropylene-based melt mixed composites with singlewalled carbon nanotubes for thermoelectric applications: Switching from p-type to n-type by the addition of polyethylene glycolcitations
- 2016High refractive index hyperbranched polyvinylsulfides for planar one-dimensional all-polymer photonic crystalscitations
- 2016Copolymerization of zinc-activated isoindigo- and naphthalene-diimide based monomers: an efficient route to low bandgap π-conjugated random copolymers with tunable properties
- 2015Methacrylate Copolymers with Liquid Crystalline Side Chains for Organic Gate Dielectric Applicationscitations
- 2014Low-temperature photosensitive polyimide processing for use in 3D integration technologiescitations
- 2014Innovative Molecular Design for a Volume Oriented Component Diagnostic: Modified Magnetic Nanoparticles on High Performance Yarns for Smart Textilescitations
- 2014Dispersability of multiwalled carbon nanotubes in polycarbonate-chloroform solutionscitations
- 2013Interfacial chemistry using a bifunctional coupling agent for enhanced electrical properties of carbon nanotube based compositescitations
- 2012Influence of different carbon nanotubes on the electrical and mechanical properties of melt mixed poly(ether sulfone)-multi walled carbon nanotube composites
- 2007Dendrimere als vielseitige, nano-skalige Objekte für biomimetische, biomedizinische und katalytische Fragestellungen
- 2006Hyperbranched Polyesters and Poly(ether amide)s - Synthesis, Modification, Melt Rheology and Application in Blends
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article
Interfacial chemistry using a bifunctional coupling agent for enhanced electrical properties of carbon nanotube based composites
Abstract
A bifunctional coupling agent (BCA) containing one oxazoline and one benzoxazinone group was applied to promote a reaction between polyamide 12 (PA12) and multiwalled carbon nanotubes (MWCNTs) during melt mixing. With this modification, the MWCNT content needed for the electrical percolation was significantly reduced by more than a factor of three. For amino functionalized MWCNT-PA12 composites adding 1 wt.% BCA electrical percolation was reached at only 0.37 wt.% MWCNTs compared to 1.0 wt.% without BCA. With the help of a model reaction, the covalent attachment of the BCA to the MWCNTs could be shown by thermogravimetric analysis (TGA) and via fluorescence spectroscopy. Model compounds were applied containing either only the oxazoline or the benzoxazinone group to show that the better electrical properties in the PA12-MWCNT composites were a result of a covalent bond between the polymer and the nanotube which only takes place when the BCA was used. In addition, significantly higher electrical conductivity values were obtained by the addition of BCA as well with amino functionalized as with nonmodified commercial MWCNTs. This surprising result was attributed to the significant hydroxy group content on the surface of those commercial MWCNTs. © 2013 Elsevier Ltd. All rights reserved. ; acceptedVersion